1990/1227/ss/clock.c (diff list | history)

1990/1226/sys/src/9/ss/clock.c:18,29 – 1990/1227/sys/src/9/ss/clock.c:18,51 (short | long | prev | next)
1990/1223		; }
1990/1227		typedef struct Ctr Ctr; struct Ctr { ulong ctr0; ulong lim0; ulong ctr1; ulong lim1; }; Ctr *ctr;
1990/1223		void
1990/1227		clockinit(void) { KMap *k; k = kmappa(CLOCK, PTENOCACHE|PTEIO); ctr = (Ctr*)k->va; ctr->lim1 = (CLOCKFREQ/HZ)<<10; } void
1990/1223		clock(Ureg *ur) { Proc *p;
1990/1227		ulong i;
1990/1223		SYNCREG[1] = 0x5F; /* clear interrupt */
1990/1227		i = ctr->lim1; /* clear interrupt */ USED(i);
1990/1223		m->ticks++; p = m->proc; if(p){
1990/1226/sys/src/9/ss/clock.c:34,42 – 1990/1227/sys/src/9/ss/clock.c:56,65
1990/1223		checkalarms(); kbdclock(); mouseclock();
1990/1226		if((ur->psr&SPL(7)) == 0 && p && p->state==Running){
1990/1223		sched();
1990/1226		if(u->nnote && (ur->psr&PSRSUPER)==0)
1990/1227		if((ur->psr&SPL(0xF))==0 && p && p->state==Running){ if(anyready()) sched(); if(u->nnote && (ur->psr&PSRPSUPER)==0)
1990/1223		notify(ur); } }